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MA: Fachverband Magnetismus

MA 19: Poster 1

MA 19.23: Poster

Dienstag, 6. September 2022, 17:30–20:00, P2

Synthesis, optical and magnetic properties of Au-Fe3O4 nanohybrids — •Tatiana Smoliarova, Marina Spasova, Ulf Wiedwald, and Michael Farle — Faculty of Physics, University of Duisburg-Essen, Duisburg, 47057, Germany

Gold-magnetite nanohybrids composed of Fe3O4 and Au nanoparticles (NPs) have attracted large attention due to the evident advantages of Au nanoparticles such as unique biocompatibility, facile surface modification, and high catalytic properties. Herein, we report on the facile room-temperature synthesis approach for Au-Fe3O4 nanohybrids preparation and their optical and magnetic properties investigation.

Au-Fe3O4 nanohybrids were synthesized by chemical precipitation with a chemisorption process of Au nanoparticles (NPs) to the Fe3O4 surface using polyvinylpyrrolidone (PVP) coverage. Prepared NPs were studied by transmission electron microscopy (TEM), UV-vis spectroscopy and magnetometry. The obtained results seem to be the promising step for the core-shell Au-Fe3O4 NPs preparation, in the case of Au NPs will be considered as the seeds for the complete Au shell growth.

This work was supported by European Union*s Horizon 2020 research and innovation program under grant agreement No 857502 (MaNaCa).